We stayed at jeenie's apartment for 3 weeks. During the stay we found the apartment building was perfect to accomodate us with a common area downstairs, gym, pool facilities very clean and easily accessible.
Washing/dry-cleaning is also located on the first floor for 50 Baht!
Bang Son is located on the purple line and 5 minutes walking distance from the apartment. To reach the main parts of the city (e.g. Siam) you will have to transfer to the MRT (Blue line) one stop away at Tao Poon station. Best part of the place, is the Siam Gypsy Night markets beside the apartment complex, where locals like to drink and socialise. If you're after delicious street food, you will find plenty on the main street averaging 40 Baht per meal. I loved the duck soup at the front of the building from the Thai couple, a must try!